Raşit Turan

E-mail

turanr@metu.edu.tr

Department

Department of Physics

ORCID

0000-0002-2612-8972

Scopus Author ID

8307543400

Web of Science Researcher ID

ABB-4627-2020

Shading Effect of Transparent Photovoltaic Panels on Crops Underneath Agrivoltaic Systems Seyedpour Esmaeilzad, Seyedehnasim; Gürsel Dino, İpek; Güney, Dilara; Yıldırım, Yusuf Ersoy; Turan, Raşit; Özden, Talat (2024-02-01) Agrivoltaic systems combine soil-grown crops with photovoltaic (PV) panels erected several meters above the ground. Combining solar panels and food crops on the same land can maximize land utilization. Under the PV panels,...
Thermal and fluid dynamic optimization of a CPV-T receiver for solar co-generation applications: Numerical modelling and experimental validation Santos, Daniel; Azgın, Ahmet; Castro, Jesus; Kizildag, Deniz; Rigola, Joaquim; TUNÇEL, BİLGE; Turan, Raşit; Preßmair, Rupert; Felsberger, Richard; Buchroithner, Armin (2023-07-01) Solar co-generation, i.e., the generation of electricity and heat in a single device by concentrating the sunbeams, has the potential to significantly increase the overall system performance. The main challenge is related ...
The effect of SiNx:H stoichiometry on electrical and chemical passivation of Al2O3/SiNx:H stack layer on p-type silicon wafers Canar, Hasan Hüseyin; Bektaş, Gence; Keçeci, Ahmet Emin; Asav, Hasan; Bütüner, Sümeyye Koçak; Arlkan, Bülent; Turan, Raşit (2023-06-27) In this paper, we report on the influence of SiNx:H stoichiometry on Al2O3/SiNx:H passivation stacks. We analyze the fabricated dielectric layers with four methods: FTIR, C-V, PCD and EQE. SiNx:H with a lower refractive in...
Silicon heterojunction solar cell efficiency improvement with wide optical band gap amorphous silicon carbide emitter Salimi, Arghavan; Dönerçark, Ergi; Koç, Mehmet; Turan, Raşit (2023-06-27) Boron doped hydrogenated amorphous silicon carbide (a-SiC:H) thin films are deposited by using 13.56 MHz plasma enhanced chemical vapor deposition as an emitter layer for SHJ solar cells. By changing different deposition p...
Optimization of front and rear surface dielectric passivation layers for ion implanted PERC solar cells Bektaş, Gence; Canar, Hasan Hüseyin; Keçeci, Ahmet Emin; Asav, Hasan; Seyrek, Selin; Bütüner, Sümeyye Koçak; Turan, Raşit (2023-06-27) Ion implantation is an alternative doping method providing a controlled emitter profile and manufacturing simplicity for PERC solar cells. SiNx:H and SiOxNy:H layers deposited by the PECVD system are common dielectric laye...
High carrier lifetimes in UMG multicrystalline wafers after P- diffusion compatible with high-efficiency cell structures Dasilva-Villanueva, N.; Arikan, B.; Canar, H. H.; Fuertes Marron, D.; Hong, B.; Kececi, A. E.; Butuner, S. K.; Bektas, G.; Turan, Raşit; del Canizo, C. (2023-1-01) High-quality multicrystalline Upgraded Metallurgical Grade Silicon (UMG-Si) offers significant advantages over conventional polysilicon-based PV technology, associated to lower energy budget. The aim of this study is twofo...
Zirconium Oxide As Electron-Selective Contacts For N-type Crystalline Silicon Solar Cells Madbouly, Loay; Nasser, Hisham; Borra, Mona Zolfaghari; Çiftpınar, Emine Hande; Aliefendioğlu, Ateşcan; Canar, Hasan Hüseyin; Turan, Raşit; Ünalan, Hüsnü Emrah (2022-12-03)
Impact of ion implantation and annealing parameters on bifacial PERC and PERT solar cell performance Siddiqui, Amna; Bektaş, Gence; Nasser, Hisham; Turan, Raşit; Usman, Muhammad (2022-10-01) © 2022 Elsevier LtdPassivated Emitter and Rear Contact (PERC) and Passivated Emitter Rear Totally Diffused (PERT) solar cell designs are now a market reality. In the production of these cells, ion implantation is another m...
Ultra-Narrow Linewidth Photo-Emitters in Polymorphic Selenium Nanoflakes Hussain, Naveed; Ahmed, Shehzad; Tepe, Huseyin U.; Huang, Kai; Avishan, Nardin; He, ShiJie; Rafique, Mohsin; Farooq, Umar; KASIRGA, TALİP SERKAN; Bek, Alpan; Turan, Raşit; Shahzad, Khurram; Wu, Hui; Wang, Zhiming (2022-10-01) Photoluminescence (PL) in state-of-the-art 2D materials suffers from narrow spectral coverage, relatively broad linewidths, and poor room-temperature (RT) functionality. The authors report ultra-narrow linewidth photo-emit...
Effect of Implanted Phosphorus Profile on iVoc Variations During Firing Process of n-type Silicon Bektaş, Gence; Çiftpınar, Emine Hande; Bütüner, Sümeyye Koçak; Keçeci, Ahmet Emin; Canar, Hasan Hüseyin; Kökbudak, Gamze; Asav, Hasan; Turan, Raşit (2022-08-24) Electrical activation of implanted phosphorus can be carried out simultaneously with boron dopants at high temperatures or separately at lower temperatures. In this study, we investigate the effect of high and low-temperat...

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